Home / 1,487,500.79-2,231,250.98-981,943.31

Finding the Fourth Proportional to 1,487,500.79, 2,231,250.98 and 981,943.31

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Solution

The fourth proportional to 1,487,500.79, 2,231,250.98 and 981,943.31 is: 1,472,914.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,500.79 : 2,231,250.98 = 981,943.31 : x
  2. Step 2: Convert to fraction form
    1,487,500.79/2,231,250.98 = 981,943.31/x
  3. Step 3: Cross multiply
    1,487,500.79x = 2,231,250.98 × 981,943.31
  4. Step 4: Simplify right side
    1,487,500.79x = 2,190,961,956,675.97
  5. Step 5: Solve for x
    x = 2,190,961,956,675.97/1,487,500.79
  6. Step 6: Final answer
    x = 1,472,914.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.